Tire-bolt wrench.



-`N0.672,o6|. Patented Apr. ls, mol. w. s. GoTscHALL.

TIRE BOLT WRENCH.

(Application med July .24, 1900.

UNITED STATES PATENT Fries.

WILLIAM G. GOTSCHALL, OF DNRIETH, INDIANA, ASSIGNOR OF ONE-HALF .TO EVERETT MCFARLAND, OF SAME PLACE.

TIRE-BOLT WRENCH.

SPECIFICATION forming part of Letters Patent No. 672,061, dated April 16, 1901.

Application led July 24. 1900. lSerial No. 24,691. (No model.) V

T0 all 'whom it may concern:

Be it known that LWILLIAM G. GOTSOHALL, a citizen of the UnitedA States, residing at Dunrieth, in the county of Henry and State of Indiana, have invented a new and useful rfire-Bolt Wrench, of which the following is a speciiication.

This invention relates to improvements in' tire bolt wrenches, which term comprehends that type of tools which are employed for the purpose of replacing or displacing tirebolts which connect the tire with the felly inv and designed to coperate with the boltholder to retain the device in place upon the wheel during the screwing` or unscrewing of the nut and to guide the wrench to the nut when the device is Vbeing placed upon the wheel.

To the accomplishment of this object and others which will hereinaftermore fully appear the invention consists in the construction and arrangement to -be described, illustrated in the accompanying drawings, and defined in the appended claims.

In said drawings, Figure lis a perspective view of my device, illustrating its use. Fig. 2 is a central longitudinal section through the device complete, certain of the parts being shown in elevatign. Fig. 3 is a detail -viewi illustrating the arrangement of the clamping and guide member.

Referring to the numerals of reference em` or driving shaft 4, having a bearing at one e'nd in the arm 3 and at its opposite end in a bearing-bracket v5,projecting from the stock Vl. l Rotary movement is imparted to the shaft 4 by means of a crank 6, keyed upon the end of the shaft adjacent to the handle, and power is transmitted from said'shaft by means of a comparatively large gear-wheel 7, keyed at the opposite end of the shaft beyond the arm 3 and meshing with the wrench-pinion 8, having a square opening 9 for the reception of ',-the squared end l0 of the shank or stud 11 of the nut-wrench 12. l

The stud of the nut-wrench 12 passes through and has abearing in the arm 3, and

the wrench proper is provided with a nutsocket 13, in the bottom Wall of which is formed a depression or recess 14 for the reception of the end of the bolt which projects beyond the nut or tap. This aggroupment `of elements comprehends the wrench proper, inasmuch as we now have a stock and handle carrying a rotarywrench and wrench actuating or driving mechanism by means of which the wrench may be rotated at a higher rate of speed than that imparted to the crank. It is necessary,- however, to provide means for retaining the wrench in proper position upon the rim of the wheel and for holding the bolt against rotary movement while the nut is being screwed on or oft', as the case may be. To accomplish these ends,I provide what may be termed an adjustable bolt-holder 15 and a guiding and clamping member 16, de-

' t signed to be clamped against the inside of the felly and the outside of the tire for the purpose of Vretaining the device in place by means of a movable handle 17, common to both the bolt-holder and clamping member and designed to be gripped by thengers of the op- 'erator and to be urged toward'the handle 2 for the purpose of presenting the nut-holder and clamping member against the wheel-rim with the desired pressure.

' Thebolt-holder 1'5 is a short bar provided with a knife-edge 18, designed to engage the slot in the head of a tire-bolt. The adjustment of the holder 15 i's effected' by passing it through a socket 19 at one end of a holderlever 20 and by providing said socket with an abutment-screw 2l, which may be screwed up to retain the holder in its adjusted positions. The lever 2O is bifurcated for a con- IOO siderable portion of its length to permit it to straddle the shaft4 and stock 1, to which latter it is adjustably fulcrumed at a point intermediate of its ends, as by a pintle 22, designed to be received within either opening of a series of openings 23 in the stock 1.

The bolt-holder 15 is, as a matter of course, arranged in alinement with the axis of the wrench 12, as it must engage the head of a bolt carrying a nut with which thc wrench is designed to engage. Ata point intermediate of the shaft 4 and the lower end of the holderlever the latter is provided with a bracketarm 24, extendingat right angles to the lever in the direction of the bearing-bar 3 and provided with a series of openings 25 for the reception of the pintle or fulcrum-stud 26 of the guiding and clamping lever 16. The lower or clamping end 27 of the lever 16 is bifurcated to straddle the wrench 12 and is offset, although disposed in a plane substantially parallel with the end of the lever eX- tending above the pintle 26. This bifurcation of the clamping member is effected by dividing the end of a solid lever, or, as shown, the lever 16 may be composed of a pair of metal strips 28 and 29, passing at opposite sides of the stock 1, shaft 4, and bracket 25 and connected by the pintle 26 and a knucklestud 30, pivotally connecting the upper end of the clamping-lever to the lower extremity of the handle 17, which is pivotally mounted at a point intermediate of its ends between the ears 31 of a bracket 32, extendingr at right angles to the lever 2O and securely retained within the bifurcated upper end of said lever by a rivet The operation of the device is as follows: Supposing awheel to be supported in a horizontal position upon a wheel-rack, my device is presented to the rim of said wheel from above. The operator, grasping the handles 2 and 17, swings the latter and by reason of the arrangement shown urges the bifurcated end of the clamping member against the felly at opposite sides of the nut to be removed and simultaneously presents the knife-edge 18 of the bolt-holder to the slotted head of the bolt for the purpose of retaining the bolt against movement and for the further purpose of clamping the rim of the wheel securely in order that the wrench 12 may be presented with facility to the nut. Continued pressure upon the handles 2 and 17 will cause the socket 13 of the wrench to be advanced toward the rim for the reception of the nut upon the tirebolt, in which position of the parts the crank y is operated to rotate the wrench for the purpose of unscrewing the nut. In like manner when it is desired to screw a nut upon the bolt instead of therefrom the nut is first placed in the wrench-socket and the operation just described is then repeated to present the nut to the bolt, and the crank is opei'ated in the opposite direction to screw the nut firmly against the felly of the wheel. The faces of the bifurcated end 27 of the clamping member which contact with the felly are shielded by non-abrasive pads 34 to prevent abrasion of the surface with which they contact.

From the foregoing it will be observed that I have produced a simple and ingenious tirebolt wrench by means oi' which the nuts may be quickly screwed upon or removed from tire-bolts serving to retain the tire upon the felly in wheel structures and that the coperative elements of the wrench may be quickly and conveniently adjusted to accommodate wheel rims and nuts of varying sizes; but, while the presentinvention appears at this time to be preferable, I do not desire to be understood as limiting myself to the structural det-ails defined, but reserve the'right to effect such changes, modifications, and variations as may fall properly within the scope of the protection prayed.

What I claim is- 1. In a device of the character described, the combination with a stock, provided with a handle and a wrench and wrench-actuating mechanism carried by the stock, of clamping members movable independent of the stock, but having operative connection therewith and means for urging said members against the opposite sides of a Wheel-rim to facilitate the application of the wrench.

2. In a device of the character described, the combination with a stock, provided with a handle and a wrench and wrench-actuating mechanism carried by the stock, of a boltholder and clamping member both movable independent ot' the wrench and stock but operatively connected to the latter, and means common to the bolt-holderand clamping member for urging them against the opposite sides of a wheel-rim to facilitate the application of the wrench.

3. In a device ot' the character described, the combination with a stock, rotary wrench and wrench-actuating mechanism,of a holderlever, a clamping-lever, a bolt-holder carried by the holder-levei-,and means for actuating said levers simultaneously to cause them to clamp the rim of a wheel to facilitate the application of the wrench.

4. In a device of the character described, the combination with a stock, a rotary wrench carried thereby, and wrench-actuating mechanism, of a holder-lever ivoted upon the stock and provided with boltholder, a clam ping-'lever having one end opposed to the holding-le ver, and a handle connected to both of said levers to aotuate them simultaneously in opposite directions.

5. In a device of the character described, the combination with a stock, a rotary wrench and wrench-actuating mechanism,of a holderlever pivotally mounted upon the stock, a bolt-holder carried by said lever, a clampinglever pivotally supported by the holder-lever, and a pivoted handle supported by the holderlever and having a pivotal connection with the clamping-lever, whereby the movement IIO of said handle will eeot the movement of the said levers in opposite directions to clamp the device upon a Wheel-rim.

6. In a device of the character described, the combination with a stock, a handle extending from the stock, a rotary Wrench and wrench-actuating mechanism, of a holder-lever pivoted upon the stock, an adjustable holder carried by said lever, bearing-brackets extending from the holder-lever at opposite sides of its pivot, a clamping-lever pi votally mounted upon one of said brackets, asecond handle pivotally mounted upon the other bracket and having a pivotal connection with the clamping-lever, said handles being arranged in proximity to permit them to be gripped by the hand of the operator.-

7. In a device of the character described, the combination with a stock provided with a handle and with a bearing-arm extending in opposite directions from its ends, a bearingbracket carried by the stock, a shaft journaled in said bracket and in the bearing-arm,

a crank mounted on said shaft adjacent to the handle of the stock, a rotary Wrench having a bearing in the outer end of the bearingarm, gearing intermediate of the shaft and Wrench, a holder -lever pivotally mounted upon the stock and provided with an adjustable bolt-holder in axial alinement with the Wrench, bearing-brackets extending from the holder-lever at opposite sides of the stock, a clam ping-lever pivoted to one of said brackets and provided With a bifurcated end in proximity to the Wrench, and a pivoted handle carried by the other bearing-bracket upon the holder-lever and having a pivotal connection with the adjacent end of the clampinglever.

In testimony that I claim the foregoing as my own I have hereto aixed my signature in 'the presence of two Witnesses.

WILLIAM G. GOTSOHALL. Witnesses:

I. C. VICKERY, WM. L. LEFTER. 

